Suggestions by @toughsandwich

Bill Nighy

as Charles Xavier in Casting Marvel Characters

Ben Affleck

as Scott Summers in Casting Marvel Characters

Jensen Ackles

as James "Logan" Howlett in Casting Marvel Characters

Hunter Schafer

as Link in The Legend of Zelda

Willem Dafoe

as Ganon in The Legend of Zelda

Betty White

as Ma Kent in Superman

Martin Sheen

as Pa Kent in Superman

Steve Carell

as Perry White in Superman

David Harbour

as Metalo in Superman

Kevin Costner

as Sam Lane in Superman

Olivia Wilde

as Mercy Graves in Superman

Robert Downey Jr.

as Lex Luther in Superman

Arthur Darvill

as Jimmy Olson in Superman

Lauren Graham

as Lois Lane in Superman

Brendan Fraser

as Superman in Superman

Jude Law

as Krona in Green Lantern

Micky Rourke

as Traitor in Green Lantern

Catherine Zeta-Jones

as Carol Ferris in Green Lantern

Kevin McDonald

as Salaak in Green Lantern

Michael Chiklis

as Kilowog in Green Lantern